PHQA Series Performance Overview
Gearhead Size Nominal Output Torque
Nm
Torsional Backlash¹
arcmin
Input Speed Max. (Cyclic)
rpm
Axial Load Max.
N
Acceleration Torque
Nm
Torsional Stiffness
arcmin
Stage 1 2 1 2 1 2 1 2 1 2 1 2
PHQA4 120 ≤1 6000 8000 2150 170 ≤39
PHQA5 280 ≤1 5000 7000 4150 430 ≤93
PHQA7 650 ≤1 5000 6500 6150 950 ≤208
Stage 2 3 2 3 2 3 2 3 2 3 2 3
PHQA8 1700 ≤1 6000 6500 10,050 2600 ≤660
PHQA9 3800 ≤1 4500 6000 33,000 6000 ≤1230
PHQA10 6500 ≤1.5 4000 4500 50,000 10,000 ≤2068
Notes
1)  Tested at 1.5% of nominal torque and recorded on the output side of the gearhead. For lower backlash, contact STOBER technical support.
2)  Rating based on output speed (n2) of 20 RPM.
3)  Two stage

Output Shaft Load

radial axial